There are 2 titles associated with this firm.

@book{ wphp_5388
  author={,Margaret},
  year={1767},
  title={Tunbridge epistles, from Lady Margaret to the Countess of B**.},
  publisher={Joseph Johnson and Benjamin Davenport \& },
  address={London},    }
@book{ wphp_1099
  author={Southcott,Joanna},
  year={1812},
  title={An Answer to Thomas Paine's Third Part of the Age of Reason, Published by D. I. Eaton;  likewise to S. Lane, a Calvinistic Preacher, at Yeovil, in Somersetshire, and to Hewson Clarke, Editor of The Scourge, and late of Emanuel College, Cambridge. By Joanna Southcott. Entered in Stationer's Hall.},
  publisher={},
  address={London},    }